Bosch AL0739X Alternator

Reliable Remanufactured Alternator for BMW Models

The Bosch AL0739X Alternator (Remanufactured) is designed to provide dependable electrical charging and starting performance for select BMW vehicles. Engineered to meet OEM specifications, this 12-volt alternator supports models including the BMW 320i, 323i, 325i, 328i, 525i, M3, and Z3.

• Voltage: 12V for standard automotive electrical systems
• Amperage Rating: 140 amps to support vehicle electrical demands
• Rotation Direction: Clockwise for proper engine compatibility
• Plug Type: 381 with 8-pin plug clock rear view main mounting ear at 6 o'clock
• Fan Type: Internal with external fan included for efficient cooling
• Pulley: 6-groove pulley included, 50mm outside diameter
• Regulator: Internal regulator included for stable voltage output
• Case Material and Color: Durable aluminum case in aluminum finish
• Remanufactured unit meeting Bosch quality standards

About the Bosch Alternator (Remanufactured) Product Line

The Bosch Alternator (Remanufactured) line offers high-quality remanufactured alternators that restore original equipment performance. Each unit undergoes rigorous testing and refurbishment to ensure reliability and longevity. The AL0739X is part of this line, providing a cost-effective solution without compromising on Bosch’s engineering standards.

Detailed Product Description

This Bosch AL0739X alternator is specifically designed for BMW vehicles such as the 320i, 323i, 323is, 325i, 325is, 328i, 328is, 525i, 525iT, M3, and Z3. It features a 12-volt electrical system with a 140-amp output to meet the power requirements of these models. The clockwise rotation and 6-groove pulley ensure proper fit and function. The internal fan combined with an external fan enhances cooling efficiency, while the internal regulator maintains consistent voltage. The aluminum case provides durability and heat dissipation, making it suitable for demanding driving conditions.

Common Issues This Alternator Addresses

• Battery not charging or frequent battery drain
• Dim or flickering dashboard and headlights
• Electrical system warning lights illuminated
• Unusual noises from the alternator pulley or fan
• Vehicle stalling or difficulty starting due to charging failure

Installation Notes and Tips

• Ensure compatibility with your BMW model before installation
• Disconnect the battery before removing the old alternator
• Check belt tension and pulley alignment during installation
• Verify electrical connections match the 8-pin plug type 381
• Test charging system after installation to confirm proper operation

Quality Assurance and Warranty

This remanufactured Bosch alternator is built to meet or exceed OEM standards. Each unit is tested for electrical output, mechanical integrity, and durability. Bosch provides a limited warranty on this alternator to cover defects in materials and workmanship, ensuring confidence in your replacement part.